Machine for dyeing or similarly treating yarns in the form of hanks, skeins, or bundles



A ASHWORTH. MACHINE FOR DYEING 0R SIMILARLY TREATING YARNS N THE FORM OF HANKS, SKEIN 8, 0R BUNDLES.

APPLICATION man APR. 14, 1920.

L 2. 9 1. ,H 11% %m FM H s m m a D1 A. ASHWORTH. MACHINE FOR DYEING 0R SIMILARLY TREATING YARNS IN THE FORM OF HANKS SKEINS, 0R BUNDLES. APPLICATION FILED APR-14, 19 20.

1,367,1 12. I Patented Feb. 1, 1921.

3 SHEETS-SHEET 2.

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;1 I? i I U I I JI I'I' TI" 7 I 1:11,: r /1 I l l Je Laud VIQMLWQQ W Wham WM Arr} A. ASHWORTH. MACHINEFOR DYEING 0R sum/um TREATING YARNS IN THE FORM OF HANKS, SKEINS, 0R BUNDLES. APPLICATION FILED APR. 14, 1920.

l,367,1 12. Patented Feb. 1, 1921.

3 SHEETS-SHEET 3- UNITED STAT s PATENT-OFFICE.

ALFRED nsnwonrn, or ivrancnnsrnn, ENGLAND.

MACHINE ron DYEING on snvrrnanLY rnnemiNe YARNS IN THE FORM or BANKS, strains, on BUNDLES.

Application filed April 14,

, To all to hom it may concern:

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Be it known that I, ALFRED Asrrwonrrr, a subject of the l'lling of Great Britaimresiding at Smedley Dye Works, Collyhurst, Manchester, in the county of Lancaster, England, have invented. new and useful Improvements in lvlachines for Dyeing or Elimilarly Treating Yarns in the Form of Banks, Skeins, or Bundles, of which the following is a specification.

My invention relates to machines for dyeing or similarly treating yarns in the form of hanks, skeins or bundles according to the method described in the prior British specification No. 118575.

The said patented method consists essentially in packing the yarn in the dry state into a rectangular tank or vat with the threads laid horizontally in approximately the same direction as the flow of the liquor by which they are dyed or similarly treated and applying sullicient pressure, not less than 20 lbs. per square inch, to expel as far as possible the air from the packed bundles of dry yarn before the treating liquid is introduced.

In the forms of machine described and illustrated. in the said specification an inner rectangular tank is contained within an outer rectangular tank and the liquor is drawn from the outer tank by a circulating pump and forced into a central. compartment or space in the inner tank, thence through the compressed yarn in approxi mately the same direction as that in which the threads are laid and packed, thence through perforated plates forming the sides or ends of the inner tank and so into the outer tank to complete the circuit.

In these machines the two sile chambers or sides of the inner rectangular tank are packed and filled by laying in the rolls or bundles folded to half their length by doubling one half of each roll or bundle upon its other half, and with such folded or doubled bundles good results have been obtained but with unfolded bundles difficulty has been experienced when dyeing in obtaining complete saturation and perfectly uniform color or shade throughout the entire hank or bundle.

Further, as already stated, the yarn is compressed dry and after compression the lid is clamped down and consequently after Specification of Letters Patent.

Patented Feb. 1, 1921.

1920. Serial No. 373,736.

saturation the pressure caused by the swell 111g of the hanks tends to force up the lid and so open the joint wlthconsequent detrimental result.

My present invention. consists in certain improvements in the said patented typeof apparatus, such improvements being characterized by the following features First. Instead of employing a rectangur' lar tank within a rectangular tank I now employ a single rectangular tank, without any central compartment or division, coupled by inlet and outlet pipes directly to a circulating pump which draws the dye or other liquor from a vat or other suitable with their threads approximately in the.

direction of the flow of the liquor which passes out through a wire gauze screen to the outlet to complete the circuit.

Thirdly. I employ a lid fitting the interior of the rectangular tank with a sliding lit and having its upper edges beveled, so that after the requisite compression has been. applied to the dry yarn, and the lid has been. forced downinto the tank, a rope of cotton or any other suitable packing is placed around the tank over the beveled edges of the lid and an angle iron frame is then laid on the packing and clamped down by locking bars or equivalents; consequently, the swelling of the yarn due to saturation with the dye or other liquor, forces the lid upward and tightens the joint by compressing the packing between the beveled edges of the lid and the angle iron frame.

I illustrate these improvements in the accompanying three sheets of drawings, in which- Figure 1 is a side elevation; Fig. 2 an end elevation and F ig. 3 is a plan of the tank, the hanks being laid unfolded at full length across the tank as indicated in Fig. 2.

Fig. 4: is a part side elevation partly sectional and showing the lid and angle iron frame held down by locking bars after com- "lid 6 and an angle iron frame at is pression of the yarn and to resist the pressure caused by the swelling of the yarn after saturation.

Fig. 5 is a sectional detail of the liquid tight joint made between the lid and the angle iron frame, and Fig. 6 is a.'detail of the method of holding the locking bars in position. v

The drawings show a single rectangular tank a in which the hanks, skeins or bundles of yarn b unfolded and either tied or untied as preferred are'laid at full length in the dry state with the threads of the yarn all running in approximately the same directior and that direction being approximately the direction 'of the flow of the dye or other liquor through the tank a from the inlet to the outlet d or vice versa as determined by the action of a circulating pump or equivalent device by-which the dye or other liquor is drawn froma reservoir or other source of supply and circulated through the tank a.

When the tank a has been filled to the top with the hanks, extension plates may be brought into use as described in the aforesaid specification N 0. 113575 and further hanks piled up. The lid e is then placed in position and forced down in angle guides it by anysuitable pressure device which in'the example illustrated consists of screws 7' threaded through an adjustable cross girder g and rotated by hand wheels f. The-adjustable cross girder g is supported in other angle iron guides it which also support palleys 2' over which pass ropes or equivalents j connected at one end to the lid e and having at the other end counter weights 70.

When the lid 6 has been forced down into the position shown in Fig. 1 and all the hanks of yarn b compressed into the tank a, a packing Z such as a cotton cord or other suitable packing is placed around the tank upon the beveled or rabbeted edges 6 of the placed upon the packing l and clamped down by locking bars 91 inserted into slots k formed to receive them in the upright girders h as Well asin the brackets 0.

When the yarn has been compressed, the lid clamped down and a good liquid tight joint made as described, the circulating pump or equivalent appliance is started and the dye or other liquor forced into the tank through the inlet 0 and impinging upon a screen of wire gauze p enters the compressed yarn in approximately the same direction as that in which the threads are laid and packed and passes out of the yarn on the opposite side or end of the tank through a second screen of wire gauze 7) and so back through the outlet 01 to the circulating pum the circulation of liquid being continued either with or without reversal of direction until the dyeing or other process is completed.

In Fig. 1, the wall of the tank a is partly broken away at one sid thereof in order to show the wire gauze p, which wire gauze p covers approximately the entire surface of both ends of the tank, the wall of the tank and the wire gauze being partly broken away at the lower left-hand corner of the tank to show the hanks which are to be dyed.

Outlets Q furnished with suitable valves or cocks are provided near the bottom of the tank a for drainage purposes when required.

Although the present apparatus is pri1narily designed for dyeing or similarly treatin unfolded hanks, skeins or bundles of yarn it will be obvious that if required it would be equally applicable for tr ating folded yarns.

I naturally prefer, however, to treat the hanks, skeins or bundles in the open unfol led state as better results are obtained and the folding operation is obviated.

What I claim as my invention and desire to secure by Letters Patent is An apparatus for dyeing yarns in the form of hanks, comprising a single rectangin lar tank, an inlet pipe at one end thereof, an outlet pipe at the opposite end thereof, wire gauze screens placed in the tank adjacent said inlet and outlet respectively, a lid litting the interior of the rectangular tank with a sliding iit and having its upper edges rabbeted to receive a suitable packing, and an angle iron frame having a portion there of resting on said packing within said rabbeted edge.

In testimony whereof I have signed my name to this specification.

ALFRED ASHWORTH. 

